Mreg wrote: <<Why, you think it changes by model year?>>
That was the question. The car has a 9-speed transmission that only uses 8 of its gears. Then what's the point of having a 9-speed? I think that's engineering that's somewhat lackluster. My '15 with the tow package has a 3.52 to 1 axle ratio. Change that to 3.9 or 4.1 and the car would probably be seeing 9th gear in normal cruising while having more acceleration in the lower gears.
It's not a matter of wanting to see the elusive 9th gear just for the thrill. It's to see the engineers properly match the capabilities of the transmission to the car. I think this is a 'bug' that they have apparently not worked out yet.
2015 Cherokee Limited - Ordered 10/21 and built 11/14. Took delivery on 11/21/14 - Deep Cherry, V6, ADII, all the tech stuff and options except a sunroof, CD player, subwoofer and charging pad.